                      topology2
                      {1 "1"
                       2 "1"}
-                     {[1] ["sup1" 1]
-                      [2] ["sup1" 2]
+                     {[1 1] ["sup1" 1]
+                      [2 2] ["sup1" 2]
                       })
                     (advance-cluster-time cluster 10)
                     ))

                     topology1
                     {1 "1"
                      2 "1"}
                     {[1] ["sup1" 1]
                      [2] ["sup1" 2]
                      })
                    (submit-mocked-assignment
                     (:nimbus cluster)

                           2 "1"
                           3 "1"
                           4 "1"}
                          {[1 1] ["sup1" 1]
                           [2 2] ["sup1" 2]
                           [3 3] ["sup2" 1]
                           [4 4] ["sup2" 1]
                           })
                        (advance-cluster-time cluster 2)
                        (heartbeat-workers cluster "sup1" [1 2])
